Planning application · Co. Offaly
Derrynagall or Ballydaly, Tullamore, Co. Offaly
Further information requested 29 Jun 2026
Key facts
- Planning application 2660248 at Derrynagall Or Ballydaly, Tullamore, Co. Offaly: 10 year planning permission.
- The applicant is Sse Renewables Tinnycross Battery Storage Ltd.. The agent is Aislinn O'Brien.
- It was received by Offaly County Council on 5 May 2026.
- Status: Further information requested 29 Jun 2026.
- The council asked for further information on 29 Jun 2026. It decides after the applicant replies.
Source: the Offaly County Council planning register, checked 14 Oct 2026. Open the council's file
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What and where
10 year planning permission
A 10 year planning permission on a site of approximately 4.9 hectares is sought. The development will consist of: A revised site design for a Battery Energy Storage System facility permitted under Ref No. 24/60002, incorporating between 28 no. and 112 no. battery containers with a difference in height of between 4m?and?5.5m. Heating, Ventilation, and Air Conditioning (HVAC) units, transformers, inverters and underground cabling will also be provided. An associated electrical compound comprising: - 1 no. A High Voltage electrical yard; - 1 no. Operational and welfare building (29.7 sq m); - 1 no. Storage building (91.0 sq m); - 1 No. Switchgear Building (315 sq m); - An 18m high AGL lightening protection mast; and - An auxiliary power supply, transformer, circuit breaker, disconnector, earth switch and ancillary grid equipment. Access will be provided using an existing access track off the L1024 which will be widened on a temporary basis to allow for the delivery of abnormal loads during the construction stage. A new secondary access track connecting to the L1024 will also be provided. All ancillary site development works and infrastructure necessary to facilitate the development including the provision of a temporary construction compound, diesel generator, palisade fencing, landscaping and earth bunding, CCTV security monitoring system, surface water drainage, potable water supply, lighting and signage. Fire safety provisions which will include 2 no. fire water storage tanks; and General enabling works including boundary treatment. Certain details of the proposed development are unconfirmed in the planning application, and an opinion on unconfirmed details from Offaly County Council pursuant to Section 32H(1) of the Planning and Development Act 2000 (as amended) accompanies this planning application. The details unconfirmed in this application are battery height and number of battery containers. The range of parameters under which the battery storage will fall are specified on this site notice and in the design flexibility opinion that accompanies this application
- Location
- Tullamore, Co. Offaly Map
- Council
- Offaly County Council
- Planning reference
- 2660248
- Application type
- Permission
- Agent
- Aislinn O'Brien
Numbers and dates
- Floor area
- 436 m²
- Received
- 5 May 2026
Timeline
- Application received
- Further information requested
Site history
This site's history
-
Earlier permission 2460002 for this site: granted 17 Apr 2024.
a 10 year planning permission. The development will consist of a grid system services facility within a total site area of 3.5 hectares… Named in this application's description -
Application 2660301 at the same address: received 4 Jun 2026, no decision recorded yet.
A 31.34 metre length of 110kV Overhead Electricity Line connecting a Battery Energy Storage System to the Thornsberry 110kV substation Same address
Earlier records are the planning references this application names, records at the same address, and records within 50 m of the same map point. An address or a map point can cover more than one property, so check the council's file before relying on a match.
Outlook
What happens next
Work packages named so far
Documents and evidence
Check the record
- Council planning fileThe application file 2660248 on eplanning.ie: drawings, reports and the decision.Open the council's file
How we know this
From the Offaly County Council planning register, checked 14 Oct 2026. We link to the council's own file so you can check the official record before you act.
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